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Process Equipment and Plant Design

Process Equipment and Plant Design
The ratio for the rate of washing to the final rate of filtration in a washing type of plate and frame filter is

1.25
0.5
0.25
0.75

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Process Equipment and Plant Design
With increase in gas flow rate to fabric surface area ratio (Nm³/hr/m² fabric surface area), the size & the cost of a bag filter

Decreases
Remain unaffected
Increases
None of these

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Process Equipment and Plant Design
Commercial packed scrubbers are normally designed for a pressure drop range of __________ mm water coloumn per metre of packed height.

17-34
52-68
43929
88-105

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Process Equipment and Plant Design
Normally, the plate thickness of the bottoms and roofs of vertically cylindrical storage vessels as compared to that of the cylindrical shell is

Same
More or less depending upon the pressure & temperature inside the vessel and the nature of the fluid contained therein
More
Less

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Process Equipment and Plant Design
The thickness of heat transfer plates used in the plate type heat exchanger ranges from __________ mm, pressed in a single piece provided with grooves & corrugations.

3.5 to 7.0
1.25 to 3.125
0.3 to 0.8
44055

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Process Equipment and Plant Design
For annular flow of a fluid, the ratio of the equivalent diameter for pressure drop calculation to the equivalent diameter for heat transfer calculation is

D1/(d1 + d2)
(d1 + d2)/d1
(d1 + d2)/d2
D2/(d1 + d2)

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